<?php
require 'XCache.php';
/**
* Example using xcache in a class
*
* The static var xcache MUST TO EXISTS, this obtains the class itself, and it's used to call any method inside the class.
*
* The
*/
class testCache
{
// MUST TO EXISTS
public static $xcache='';
public function __construct()
{
// xcache MUST TO BE ASSIGNED TO THIS CLASS
self::$xcache=$this;
}
public function dumpServerVar($item)
{
$XCache = XCache::getXCInstance();
return $XCache->cache('cache_test','MyTestInfo','MyTestInfoID',get_class($this),'_dumpServerVar',$item);
}
public function _dumpServerVar($item)
{
if (isset($_SERVER[$item]))
return $_SERVER[$item];
else
return null;
}
/**
* Function to call other class within XCCache
*
* @param type $date
* @return type
*/
public function otherClassCache($date)
{
// xcache MUST TO BE ASSIGNED TO A CLASS
$XCache = XCache::getXCInstance();
return $XCache->cache('cache_test','MyExternallClassCall','otherClass','otherClassCache','otherMethod',$date);
}
}
/**
* Another class to show how can be called any external class
*/
class OtherClassCache
{
// MUST TO EXISTS
public static $xcache;
public function __construct()
{
// xcache MUST TO BE ASSIGNED TO THIS CLASS
self::$xcache = $this;
}
function otherMethod($date)
{
return "External call to other class successfull on $date";
}
}
/**
* Load the test class
*/
$testCache = new testCache();
/**
* Example loading dumServerVar, this method calls XCache->cache.
* XCache->cache load _dumpServerVar method if it's not cached through xcache static var.
*/
echo 'Cache $_SERVER[\'REQUEST_TIME\'] : '.$testCache->dumpServerVar('REQUEST_TIME')."<br />";
echo '$_SERVER[\'REQUEST_TIME\'] date '.date('Y-m-d H:i:s',$testCache->dumpServerVar('REQUEST_TIME'))."<br />";
echo '$_SERVER[\'REQUEST_TIME\'] cached '.(time()-$testCache->dumpServerVar('REQUEST_TIME')).' seconds ago'."<br />";
echo 'This cache expires each: '.XCache::getXCInstance()->getCacheItemExpiration('cache_test','MyTestInfo','otherClass').' seconds'."<hr />";
/**
* Example loading other class inside testCache, this method calls XCache->cache.
* XCache->cache load otherClassCache->otherMethod method if it's not cached through xcache static var.
*/
echo 'Cache other class method : '.$testCache->otherClassCache(date('Y-m-d H:i:s'))."<br />";
echo 'This cache expires each: '.XCache::getXCInstance()->getCacheItemExpiration('cache_test','MyExternallClassCall','MyTestInfoID').' seconds'."<hr />";
/**
* Example using increment
*/
echo 'Cache & increment test num : '.XCache::getXCInstance()->incCache('cache_test','MyTestCount','MyTestCountID',1)."<hr />";
/**
* Example saving a fixed value
*/
$randNum = rand(1000,9999);
echo 'Cache a rand value : '.XCache::getXCInstance()->cache('cache_test','MyTestValue','RandVar',$randNum)."<br />";
echo 'This cache expires each: '.XCache::getXCInstance()->getCacheItemExpiration('cache_test','MyTestValue','RandVar').' seconds'."<hr />";
/**
* Example saving an object
*/
$myObject = new stdClass();
$myObject->id = 24;
$myObject->name = 'Product name';
$myObject->qty_random = rand(1,1000);
$myObject->date_insert = date('Y-m-d H:i:s');
echo 'Cache an object :';
var_dump(XCache::getXCInstance()->cache('cache_test','MyTestValue','MyObject',$myObject));
echo "<br />";
echo 'This Object cache expires each: '.XCache::getXCInstance()->getCacheItemExpiration('cache_test','MyTestValue','MyObject').' seconds'."<hr />";
/**
* Memory usage
*/
echo "Memory used: ".number_format(memory_get_usage()/1000,0)."Kb";
?>
<br />
<br />
Press 'refresh' to see how the cache changes ...
<input type='button' value='Refresh' onclick='location.reload();'>
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demo.php
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